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869 Matching Results
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WET MARS: Plentiful, Readily-Available Martian Water and its Implications
Water and its major constituent, oxygen, in large specific quantities are essential for maintenance of human life. Providing them in adequate quantities is widely believed to be a major challenge for human exploration and settlement of Mars. The Martian regolith isn't known to bear either water or hydrogen, the ice-rich Martian polar regions are thermally inhospitable, and the measured water content of Mars' thin atmosphere represents a layer of liquid water of average thickness only {approx}1% that available on the Moon, or {approx}0.001 cm. Crucially, however, the atmospheric Martian water inventory is advected meteorologically to everyplace on Mars, so that the few cubic kilometers of liquid water-equivalent in the atmosphere are available anywhere when, merely for the effort of condensing it. Well-engineered apparatus deployed essentially anywhere on Mars can condense water from the atmosphere in daily quantities not much smaller than its own mass, rejecting into space from radiators deployed over the local terrain the water's heat-of-condensation and the heat from non-ideality of the equipment's operation. Thus, an optimized, photovoltaically-powered water-condensing system of {approx}0.3 tons mass could strip 40 tons of water each year from {approx} 10{sup 4} times this mass of thin, dry Martian air. Given a 490 set …
Date:
September 14, 1999
Creator:
Hyde, R.; Ishikawa, M.; Nuckolls, J.; Whitehead, J. & Wood, L.
Object Type:
Article
System:
The UNT Digital Library
Technology transfer from the space exploration initiative
Space exploration has demonstrated that it stimulates the national economy by creating new and improved products, increased employment, and provides a stimulus to education. The exploration of the Moon and Mars under the Space Exploration Initiative has the potential of accelerating this stimulates to the economy. It is difficult to identify all of the concrete ways this will be accomplished. However, many areas can be identified. The space exploration building blocks of power, propulsion, spacecraft, robotics, rovers, mining and manufacturing, communications, navigation, habitats, life support and infrastructures are reviewed to identify possible technology areas. For example, better means for working in hazardous areas and handling hazardous waste are potential outcomes of this initiative. Methods to produce higher quality goods and improve America`s competitiveness in manufacturing will undoubtedly evolve from the need to produce products that must last many years in the harsh environments of space and planetary surfaces. Some ideas for technology transfer are covered in this paper.
Date:
June 14, 1991
Creator:
Buden, D.
Object Type:
Article
System:
The UNT Digital Library
Technology transfer from the space exploration initiative
Space exploration has demonstrated that it stimulates the national economy by creating new and improved products, increased employment, and provides a stimulus to education. The exploration of the Moon and Mars under the Space Exploration Initiative has the potential of accelerating this stimulates to the economy. It is difficult to identify all of the concrete ways this will be accomplished. However, many areas can be identified. The space exploration building blocks of power, propulsion, spacecraft, robotics, rovers, mining and manufacturing, communications, navigation, habitats, life support and infrastructures are reviewed to identify possible technology areas. For example, better means for working in hazardous areas and handling hazardous waste are potential outcomes of this initiative. Methods to produce higher quality goods and improve America's competitiveness in manufacturing will undoubtedly evolve from the need to produce products that must last many years in the harsh environments of space and planetary surfaces. Some ideas for technology transfer are covered in this paper.
Date:
June 14, 1991
Creator:
Buden, D.
Object Type:
Article
System:
The UNT Digital Library
National Aeronautics and Space Administration: Overview, FY2008 Budget in Brief, and Key Issues for Congress
This report discusses the budget of the fiscal year of 2008 and the requests of the National Aeronautics and Space Administration.
Date:
March 14, 2007
Creator:
Morgan, Daniel & Behrens, Carl E.
Object Type:
Report
System:
The UNT Digital Library
Innovation Approaches to Development and Ground Testing of Advanced Bimodal Space Power and Propulsion Systems
The last major development effort for nuclear power and propulsion systems ended in 1993. Currently, there is not an initiative at either the National Aeronautical and Space Administration (NASA) or the U.S. Department of Energy (DOE) that requires the development of new nuclear power and propulsion systems. Studies continue to show nuclear technology as a strong technical candidate to lead the way toward human exploration of adjacent planets or provide power for deep space missions, particularly a 15,000 lbf bimodal nuclear system with 115 kW power capability. The development of nuclear technology for space applications would require technology development in some areas and a major flight qualification program. The last major ground test facility considered for nuclear propulsion qualification was the U.S. Air Force/DOE Space Nuclear Thermal Propulsion Project. Seven years have passed since that effort, and the questions remain the same, how to qualify nuclear power and propulsion systems for future space flight. It can be reasonably assumed that much of the nuclear testing required to qualify a nuclear system for space application will be performed at DOE facilities as demonstrated by the Nuclear Rocket Engine Reactor Experiment (NERVA) and Space Nuclear Thermal Propulsion (SNTP) programs. The nuclear infrastructure …
Date:
July 14, 2000
Creator:
Hill, T.; Noble, C.; Martinell, J. (INEEL) & Borowski, S. (NASA Glenn Research Center)
Object Type:
Article
System:
The UNT Digital Library
Radiation load to the SNAP CCD
Results of an express Monte Carlo analysis with the MARS14 code of radiation load to the CCD optical detectors in the Supernova Acceleration Project (SNAP) mission presented for realistic radiation environment over the satellite orbit.
Date:
August 14, 2003
Creator:
N. V. Mokhov, I. L. Rakhno and S. I. Striganov
Object Type:
Report
System:
The UNT Digital Library
Nuclear thermal rocket clustering: 1, A summary of previous work and relevant issues
A general review of the technical merits of nuclear thermal rocket clustering is presented. A summary of previous analyses performed during the Rover program is presented and used to assess clustering in the context of projected Space Exploration Initiative missions. A number of technical issues are discussed including cluster reliability, engine-out operation, neutronic coupling, shutdown core power generation, shutdown reactivity requirements, reactor kinetics, and radiation shielding. 7 refs., 3 figs., 2 tabs.
Date:
July 14, 1991
Creator:
Buksa, J.J. & Houts, M.G.
Object Type:
Article
System:
The UNT Digital Library
Federal Research and Development Funding: FY2013
This report summarizes budgetary decisions relating to research and development funding for FY2013.
Date:
June 14, 2012
Creator:
Sargent, John F., Jr.
Object Type:
Report
System:
The UNT Digital Library
Federal Research and Development Funding: FY2013
This report summarizes budgetary decisions relating to research and development funding for FY2013.
Date:
June 14, 2012
Creator:
Sargent, John F., Jr.
Object Type:
Report
System:
The UNT Digital Library
Federal Research and Development Funding: FY2013
This report summarizes budgetary decisions relating to research and development funding for FY2013.
Date:
September 14, 2012
Creator:
Sargent, John F., Jr.
Object Type:
Report
System:
The UNT Digital Library
Research and Development Funding: Fiscal Year 2002
None
Date:
November 14, 2001
Creator:
Moteff, John D.
Object Type:
Report
System:
The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 51, No. 184, Ed. 1 Wednesday, July 14, 1965
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
July 14, 1965
Creator:
Bonifield, Betty
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Wynnewood Gazette (Wynnewood, Okla.), Vol. 106, No. 20, Ed. 1 Thursday, August 14, 2008
Weekly newspaper from Wynnewood, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 14, 2008
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 86, No. 234, Ed. 1 Thursday, June 14, 2001
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 14, 2001
Creator:
Quinnelly, Lorrie J.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 84, No. 39, Ed. 1 Thursday, October 14, 1999
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
October 14, 1999
Creator:
Wilmoth, Adam
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Leonard Graphic (Leonard, Tex.), Vol. 126, No. 2, Ed. 1 Thursday, January 14, 2016
Weekly newspaper from Leonard, Texas that includes local, state, and national news along with advertising.
Date:
January 14, 2016
Creator:
Blevins, Betsy
Object Type:
Newspaper
System:
The Portal to Texas History
Seminole Sentinel (Seminole, Tex.), Vol. 96, No. 18, Ed. 1 Sunday, December 14, 2003
Semi-weekly newspaper from Seminole, Texas that includes local, state, and national news along with extensive advertising.
Date:
December 14, 2003
Creator:
Fisher, David
Object Type:
Newspaper
System:
The Portal to Texas History
The Future of NASA: Space Policy Issues Facing Congress
This report analyzes questions regarding space policy challenges and gives some possible answers. It also addresses a number of cross-cutting issues, such as NASA's (the National Aeronautics and Space Agency's) interactions with other federal agencies and the growing role of the commercial space industry.
Date:
January 14, 2010
Creator:
Morgan, Daniel
Object Type:
Report
System:
The UNT Digital Library
Our Town Times (Timpson, Tex.), Vol. 36, No. 2, Ed. 1 Thursday, January 14, 2016
Weekly newspaper from Timpson, Texas that includes local, state and national news along with advertising.
Date:
January 14, 2016
Creator:
Pate, Chad
Object Type:
Newspaper
System:
The Portal to Texas History
[News Script: Marina]
Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story.
Date:
November 14, 1971, 10:00 p.m.
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library
Federal Research and Development Funding: FY2006
None
Date:
March 14, 2005
Creator:
Davey, Michael E.
Object Type:
Report
System:
The UNT Digital Library
China’s Space Program: Options for U.S.-China Cooperation
This report outlines recent activities and future plans in China's civilian space sector. It discusses benefits and trade-offs of possible U.S.-China collaboration in space, as well as several options to improve space relations, including information exchange, policy dialogue, and joint activities.
Date:
December 14, 2007
Creator:
Logan, Jeffrey
Object Type:
Report
System:
The UNT Digital Library
The Mineola Monitor (Mineola, Tex.), Vol. 98, No. 49, Ed. 1 Wednesday, February 14, 1973
Weekly newspaper from Mineola, Texas that includes local, state, and national news along with advertising.
Date:
February 14, 1973
Creator:
Peacock, Dan
Object Type:
Newspaper
System:
The Portal to Texas History
Perry Daily Journal (Perry, Okla.), Vol. 94, No. 132, Ed. 1 Tuesday, July 14, 1987
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 14, 1987
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History